Snow plow



P. H. OPPEGAARD SNOW PLOW Filed June 24, -1946 2 Sheets-Sheet 1 arm/manyAttorneys March 2, 1948. P. H. OPPEGAARD 2,437,116

snow PLOW Filed June 24, 1946 2 Sheets-Sheet 2 I n velltor y 4: 40 d yPaf/2e!! JY. Opqyaard, i Lzr/g' l By L y Ms),

' Patented Mar. 1948 SNOW PLOWY Y Parnell 1I. Oppegaard, McIntosh, Minn.Application June 24, 1948, Serial No. 679,015

6 Claims. l

My invention relates to improvements in snow y plows of the tractoroperated type.

The primary object of the invention is to provide a simply constructed,inexpensive device for-attachment to a tractor to be dragged along theground and which is equipped for operation to take up snow and throw thesame to one side of the path of travel of the tractor in a manner toscatter snow so as to obviate the formation of drifts and ridges.

Another object is to provide a device of the class and for the purposesset forth which is adapted for operation by the power take-off of thetractor to break up and scatter the snow, and which is swingable on thetractor into a position for carrying when not in use.

Other and subordinate objects, also comprehended by my invention,together with the preclse nature of my improvements, and the advantagesthereof, Will be readily understood when the succeeding description andclaims are read with reference to the drawings accompanying and formingpart of this application.

Inthe said drawings; Figure l is a view in side elevation, vpartly insection, illustrating my improved snow plow in a preferred embodimentthereof,

Figure 2 is a view in` plan,

Figure 3 is a view in vertical transverse section on the line 3-3 ofFigure 1,

Figure 4 is a similar view of a modified embodiment of my invention,

Figure 5 is a fragmentary view in plan of the modified embodiment.

Referring to the drawings by numerals, and first to Figures 1 through 3,my improved snow plow in the preferred embodiment thereof, com prises adrag frame I of inverted U-shape adapted to extend crossWise of the pathof travel of the tractor and which is formed, preferably, of pipe with apair of aligned top sections 2, 3 to the outer ends of which uprightside sections 4, 5 are connected by elbows 6, said side sections havingconnected to the lower ends thereof, by elbows T, a pair of shortertrailing foot sections 8, 9 extending therefrom at substantially a rightangle. A T-coupling I connects the inner ends of the top sections 2, 3in the center of .the frame I and which has suitably secured thereto, asby a nipple II, an upstanding T-coupling I2 for a purpose presentlyexplained.

A platform memberv I3- in the form of a heavy plank is secured at itsends, as by bolts I4, to the foot sections 8, S'preferabiy beneath thesame.

,A scraper blade I5, of suitable metal, extends 2 along the front edgeof the platform member I3 beneath the same and is suitably secured tosaid member by means, not shown, to project forwardly of the front edgeof said member.

Prongs I', for a purpose presently seen, arise from the scraper bladeI5, adjacent .the front y edge of the platform member I3, and above saidedge and are spaced along said blade I5 equidistantly.

A tubular reach member I6 extends forwardly from the T-coupling I2 witha rear end thereof suitably fixed in said coupling.

A beater operating shaft I1 is rotatabiyextended through said reachmember I6 and .1011"-J nalled therein, its front and rear ends extendingout of the same a suitable distance for a purpose presently clear. Frontand rear end collars I 3, I9 suitably xed on said shaft I'I, one behindthe T-coupling I2, and the other in front of the reach member I6,prevent endwise play of the beater operating shaft in the reach member I6.

Diagonal brace bars extend forwardly from the upright side sections 4, 5to a pair of crossbars 2I on the reach member I6 bolted together, as at22, to clamp said member therebetween.

' said bars being bolted to vsaid sections 4, 5 as at 23, and to saidcross-bars, as at 24,

A rotary beater is provided -on the rear end of the beater operatingshaft I1 and xed thereon to rotate over the platform I 3 crosswise ofthe path of travel of the tractor and drag frame I. The beater 25 maytake various forms, but, pref erably comprises a T-coupling form of hub26 suitably fixed on the shaft I1 with a pair of rodlike arms 21extending oppositely therefrom and which are equipped at the outer endsthereof with at elongated beater blades 28 extending lengthwise of saidarms 21 and suitably bolted thereto,l as at 29. The beater blades 28 arearranged to be revolved crosswise of the axis of revolution of thebeater 25.

A universal joint coupling 30 is provided between the front end of thebeater operating shaft Il and the power take-off shaft 30? of thetractor shown in part at 3| as provided with the present equipment.v Apair of pull chains 32 connected to the upright side members 4, 5 by thev bolts 23 and suitably attached to the axle housing A33 of the tractor'3| prevents twisting of the drag frame I on the Areach member I6.

A pull cable 34 is connected at one end, as at 35, to the T-coupling I2and trained over a pulley 33 on an upright 3'I arising from the axle berI6 and the beater operating shaft il are designed to extend upwardly andrearwardly when the scraper blade I is not in use, end the drag frame isarranged so that the scraper blade I5 and the platform member I3 extendforwardly and downwardly, when said blade is in use, al1 to the end thatsaid blade will be pulled downwardly into the snow, and the platformmember I3 will accumulate or pick-up snow thereon.

Referring now to the operation of the described embodiment of myinvention. As the device is pulled by the tractor 3l, the scraper bladeI5 is caused to bite downwardly in the snow to dig into the same, andthe platform member 8 is caused to plow similarly into the snow andpick-up the same, the beater 25 breaking up the snow and throwing thesame to one side in finely divided form, thus scattering the same to oneside of the path of travel of the tractor. The prongs I5', prevent clodsof dirt, rocks and the like, from fouling the beater 25. Ihe beater 25also acts as a fan tending to blow the snow rearwardly and sidewise.

In the modified embodiment of the invention shown in Figures 4 and 5,the T-coupling 38, corresponding to T-coupling I2, supports the reachmember 34 in undersl'ung position relative to the drag frame 40, whichhas been found advantageous when said member is coupled to a low smalltractor.

The beater 4I revolves in an open front, open top, collector casing 42suitably fixed to the drag frame 40 and platform member 43 and which isprovided withl a laterally and upwardly inclined top deector plate 44for directing snow out of the collector casing 42 upwardly to one sideof the path of travel of said frame.

A side guide board 45 extends forwardly from one upright side section 46of the drag frame 40 to guide snow into the collector casing 42.

Low bar-like runners 41 are provided on the scraper blade 48 and theplatform member 43.

Otherwise the construction and operation of the modified embodiment isthe same as in the preferred embodiment of the invention.

The foregoing will, it is believed, suillce to impart a clearunderstanding of my invention, without further explanation.

Manifestly, the invention, as described, is susceptible of modificationwithout departing from the inventive concept, and right is hereinreserved to such modifications as fall within the scope of the appendedclaims.

I claim as my invention:

1. In a snow plow for attachment to a tractor having a rear powertake-off shaft, adrag frame adapted to be pulled forwardly by thetractor, a scraper blade on said frame adapted to dig forwardly intosnow in the path of travel of said frame and pick up the same, aplatform member on said frame in the rear of said blade adapted toaccumulate snow thereon picked up by said blade, and means to break upthe snow on the platform memberand scatter the same to one side of thepath of travel of the frame including a rotary operating shaft having arear end journalled on said frame against endwise movement forwardlythereof to exert a pull on said frame and provided on the front endthereof with a adapted tobe pulled forwardly by the tractor, a

scraper blade on said frame adapted to dig forwardly into snow in thepath of travel of said frame and pick up the same, a platform member onsaid frame in the rear of said blade adapted to accumulate snow thereonpicked up by said blade, and means to break up the snow on theplatformmember and scatter the same to one side of the path of travel ofY theframe including a rotary operating shaft having a rear end journalled onsaid frame against endwise movement forwardly thereof to exert a pull onsaid frame and provided on the front end thereof with a universalcoupling adapted to be connected to said take-off shaft, and a beaterfast on the operating shaft above said platform member for rotation bysaid operating shaft.

3. In a snow plow for attachment to a tractor having a rear powertake-olf shaft, a drag frame adapted to be pulled forwardly by thetractor, a scraper blade on said frame adapted to dig forwardly intosnow in the path of travel of said frame and pick up the same, aplatform member on said frame in the rear of said blade adapted toaccumulate snow thereon picked up by said blade, and means to break upthe snow on the platform member and scatter the same to one side of thepath of travel of the frame including a rotary operating shaft having arear end journalled on said frame against endwise movement forwardlythereof to exert a pull on said frame and provided on the front endthereof with a universal coupling adapted to be connected to saidtake-off shaft, a beater fast on the operating shaft above said platformmember for rotation by said operating shaft, and upstanding members onsaid blade in front of said platform member for preventing dirt dug upby said blade from fouling said beater.

4. In a snow plow for attachment to a tractor having a rear powertake-off shaft, a drag frame adapted to be pulled forwardly by thetractor, a scraper blade on said frame adapted to dig forwardly intosnow in the path of travel of said frame and pick up the same, aplatform member on said frame in the rear of said blade adapted toaccumulate snow thereon picked up by said blade, and means to break upthe snow on the platform member and scatter the same to one side of thepath of travel of the frame including a rotary operating shaft having arear end journalled on said frame against endwise movement forwardlythereof to exert a pull on said frame and provided on the front endthereof with a universal coupling Aadapted to be connected to saidtake-off shaft, and manipulative means adapted for operation from saidtractor to lift said frame and swing said shaft upwardly for carryingwhen not in use.

5. In a snow plow for attachment to a tractor having a rear powertake-off shaft, a drag frame adapted to be pulled forwardly by thetractor, a scraper blade on said frame adapted to riig forwardly intosnow in the path of travel of said frame and pick up the same, aplatform member on said frame in the rear of said blade adapted toaccumulate snow thereon picked up by said blade, and means to break upthe snow on the platform member and scatter the same to one side of thepath of travel of the frame including a rotary operating shaft having arear end jour- 6. In a snow plow for attachment to a ytractor having arear power take-off shaft, a drag frame adapted to be pulled forwardlyby the tractor, a scraper blade on said frame adapted to dig for wardlyinto snow in the path of travel of said frame and piek up the same, aplatform member on said frame in -the rear of said v blade adapted toaccumulate snow thereon picked up by said blade, and means to break upthe snow on the platform member and scatter the saine to one side of thepath of' travel of the frame including a rotary operating shaft having arear end journalled on said frame against eridwise movement forwardlythereof to exert a pull on said frame and provided on the front endthereof with a universal coupling adapted to be connected to saidtake-off shaft, and a' beater fast on the operating shaft above saidplatform member for rotation by said operating shaft, said platformmember having a snow collecting lcasing therein in which said beater isadapted to rotate, said casing being provided with an upper deectingplate for directing snow issuing out of the casing laterally of the pathof travel of the drag frame.

PARNELL H. OPPEGAARD.

